Ventilating window lock



June 2, "1925. 1,540,442

L. T. WARD VENTILATING WINDOW LOCK Filed March 12 1923 uvmvrox. L E n TW/um' ATTORNEY.

Patented June 2, 1925.

UNITED STATES LEO T. WARD, Q'F SPRINGFIELD,- MASSACHUSETTS.

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Application filed MarchlZ, 1923. Serial No; 624,308.

To all whom it may concern:

Be it known that Lno T. WVARD, citizen of the United States of America, residing at 944 WVo'rthington St, Springfield, in the a county of Hampden and State of Massachusetts, has invented certain new and useful Improvements in Ventilating Window Locks, of which the following is a specification.

w This invention relates to improvements in ventilating window locks and its leading object is to provide a lock of simple construction which will permit one window sash to slide relative to another and prevent extreme movement of the window sash in an opening direction while permitting full movement in the closing direction, the invention being so designed as to be readily at tachable to any standard window sash construction and to prevent unauthorized interference from the exterior of a building, the windows of which are equipped with my invention.

With the above and other objects in View the invention relates to certain new and useful constructions, combinations and arrangements of parts, clearly described in the following specifications and fully illustrated in the accompanying drawings, in which:

Fig. 1 is a front elevation showing the device applied to a window.

Fig. 2 is a horizontal sectional view thereof.

' Fig. 3 is a transverse sectional view taken through the guide member.

Fig. 4: is a detail view of connection.

Fig. 5 is a longitudinal sectional view taken through the connecting bolt. I

Referring to the accompanying drawings, 5 designates the lower sash and 6 the upper sash of a window frame 7, the lower sash having the usual rectangular frame provid ing the usual cross bar 5 and the upper sash having a similar rectangular frame providing a lower cross bar 6*.

On the cross bar 5 of the lower sash a bolt guide 8 is mounted by means of its a modified base integral base 9 and this bolt guide is provided with a horizontal bore 10 and the wall surrounding this base is formed having a longitudinal slot 11. A bolt 12 is slidable in the bore 10 and this bolt is provided with a right angular handle 13 which slidably projects through the slot 11. The bolt 12 carries a terminal ball 12 on the end of its main shank which works beyond the end wall 14: of the housing 8.

On the cross bar 6 a base member is" mounted. with a socket 16 having internal screw threads on which the lower end of the .upstanding tubular guide 17 is threaded. This tubular guide is provided with a longitudinal slot 18 and this slot has a lateral mouth or extension 19 which is located slightly above the connection with the socket 16 and which is adapted to receive the ball or spherical terminal of the bolt 12. The upper end of the tubular guide 17 is closed by means of a suitable plug or the like 20 and the slot 18 terminates below this plug.

The tubular standard 17 is disposed in vertical registration with the bolt 12. When it is desired to open either of the windows the spherical and ball terminal of the bolt 12 is moved into the lateral extension or mouth 19 by shiftingthe shank of the bolt en'dwise in the housing 8, by the operator grasping a handle 13, and this ball is forced in the opening 19 and the tubular guide 17 is then turned so that the slot 18 will be in line with the shank or bolt. The window sashes may then be shifted relative to each other. It will be impossible to turn the guide 17 while the shank or bolt is projecting through the slot 18 and it will be necessary to bring the shank or bolt into line with the lateral slot 19 to permit of the horizontal withdrawal of the bolt.

In Fig. 4 I show a modified baseconnection between the tubular guide 17 and the base 17. The base 17 is provided onits inner side with a recess 15 and the tubular standard 17 is provided with a nut 17 threaded thereon and this nut works-in the recess 15 against the washer 17". Both 1 forms of the base have a tubular standard and connect by means of screws or fastening elements with the window sash and the same is true of the base 9 and the housing 8.

Having described my invention, I claim:'

1. A ventilating window lock consisting of a tubular guide having a longitudinal slot and a lateral extension therein at one end of the slot and a base carrying the tubular guide to permit of a rotative move- This base member is provided 60 V inent of the guide in the lease, and a companion member having a slidahle bolt adapttween the guide and the base, and means co- 10 t operating with the guide capable of being independently attached and provided with a'l'ocking element insertable in the lateral extension of the slot and slidable in the slot. 1

Signed by me at Springfield, Mass.

LEO T. WARD. 

